The Dock you're referring to is the OS X Dock. It's for 'shortcuts' to
launch commonly used programs, folders & files. See Mac Help for more about
it. You cannot dock program toolbars there... And it probably wouldn't do
you much good if you could
'Docking' a toolbar simply means having it anchored in a fixed,
out-of-the-way location rather than 'floating'. Floating toolbars can be
dragged around as you wish to keep them close to your workspace yet be able
to easily move them elsewhere. I think the Help article I referred you to
will answer most of your questions.
Here are some additional links that may be useful:
http://word.mvps.org/mac/Differences.html
http://www.apple.com/support/switch101/
http://www.apple.com/support/mac101/
Don't hesitate to post any specific questions here.
Regards |:>)
Bob Jones
[MVP] Office:Mac